Grate cooler air duct flow regulating valve

Abstract

The utility model relates to the technical field of grate cooler air volume regulation, in particular to a grate cooler air flue flow regulating valve to solve the problems of material overflow and cooling air idling caused by mismatching of the air speeds of cooling air of a BC section. The regulating valve comprises a regulating assembly, the adjusting assembly is communicated with the main air duct of the first air chamber through the valve port transition joint; the adjusting assembly comprises a rocker arm, a pull rod and a turning plate; the turning plate is rotationally connected with the inner wall of the valve port transition joint through a rotating shaft; and the other end of the rocker arm is fixedly connected with the pull rod. An operator can adjust the angle of the turning plate in real time according to the state that materials flow through the BC section to control the air outlet amount of the valve port transition joint, cooling air is effectively blown to the blanking area of the BC section, the cooling effect is improved, the materials are prevented from overflowing, and when the materials do not fall into the grate cooler from the BC section, the valve port transition joint can be completely closed, and waste of the cooling air is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air volume regulation of grate coolers, and more particularly to a flow regulating valve for the air duct of a grate cooler. Background Art

[0002] As Figure 1 shown, a grate cooler has multiple air chambers. The air chamber at the material inlet is called the first air chamber. The entire AC section is the material dropping area. However, due to various factors such as the size, inclination angle, and flow velocity of each rotary kiln being different, the dropping points of the materials are different. The materials in the BC section area near the edge of the grate cooler in the first air chamber (i.e., Figure 1 the BC section area in

[0003] are greatly affected by the air output of the grate cooler. When the air output is large, the materials in this area are likely to overflow and be lost; when there is no material passing through this area, the cooling air is lost from this area, resulting in waste, affecting the working efficiency of the fan and the cooling effect. Moreover, the contact area between this area and the materials is only one-tenth of that of a conventional air chamber. If this area is independently provided with an air chamber, the design cost is increased, and when the materials do not flow through this area, the air chamber is idle, further increasing unnecessary costs. Summary of the Invention

[0004] The present invention provides a flow regulating valve for the air duct of a grate cooler to alleviate the problems of material overflow and idle cooling air caused by the mismatch of the cooling air velocity in the BC section.

[0005] To alleviate the above technical problems, the technical solution provided by the present invention lies in:

[0006] The present invention provides a flow regulating valve for the air duct of a grate cooler, including an adjusting assembly;

[0007] The adjusting assembly is communicated with the main air duct of the first air chamber through a valve port transition section;

[0008] Taking the air outlet direction of the main air duct as the X direction, the air outlet direction of the valve port transition section as the Y direction, and the material dropping direction of the rotary kiln as the Z direction;

[0009] Both the X direction and the Y direction are parallel to the horizontal plane;

[0010] The adjusting assembly includes a rocker arm, a pull rod, and a flap;

[0011] The flap is rotatably connected to the inner wall of the valve port transition section through a rotating shaft;

[0012] One end of the rocker arm is fixedly connected to the rotating shaft, and the other end is fixedly connected to the pull rod.

[0013] Furthermore,

[0014] The adjustment assembly includes a first action and a second action;

[0015] Under the first action, the pull rod moves in the X direction, and the rocker arm drives the rotating shaft to rotate, causing the air outlet of the valve port adapter to gradually expand;

[0016] Under the second action, the pull rod moves in the opposite direction of the X direction, and the rocker arm drives the rotating shaft to rotate in the reverse direction, causing the air outlet of the valve port adapter to gradually decrease.

[0017] Furthermore,

[0018] A limit block is arranged inside the valve port adapter;

[0019] The limit block can now limit the flap to rotate within a range of 90° from parallel to the X direction to perpendicular to the X direction.

[0020] Furthermore,

[0021] It further includes a locking assembly;

[0022] The locking assembly includes a sleeve and an adjusting bolt;

[0023] The pull rod is inserted into the sleeve;

[0024] The adjusting bolt is inserted into the side wall of the sleeve and extends inward to abut against the pull rod.

[0025] Furthermore,

[0026] A sealing ring is arranged on the side wall of the flap.

[0027] Furthermore,

[0028] A pull ring is arranged at one end of the pull rod away from the rocker arm.

[0029] The beneficial effects of the air flow regulating valve of the grate cooler in the present invention are analyzed as follows:

[0030] Operators can adjust the angle of the flap in real time according to the state of the material flowing through the BC section to control the air output of the valve port adapter, so that the cooling air can effectively blow to the falling material area of the BC section, improve the cooling effect, and avoid material overflow. When the material does not fall into the grate cooler from the BC section, the valve port adapter can be completely closed to avoid waste of cooling air. Description of the Drawings

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Schematic diagram of the application position of the present invention;

[0033] Figure 2 is Figure 1 Enlarged schematic diagram of D in

[0034] Figure 3 Schematic diagram of the structure of this regulating valve.

[0035] Icon:

[0036] 100 - regulating assembly; 110 - rocker arm; 120 - pull rod; 130 - flap; 140 - rotating shaft; 150 - pull ring;

[0037] 200 - valve port transition section; 210 - limit block;

[0038] 300 - main air duct;

[0039] 400 - rotary kiln;

[0040] 500 - locking assembly; 510 - sleeve; 520 - adjusting bolt;

[0041] 600 - first air chamber. Specific embodiments

[0042] Due to various factors such as the size, inclination angle, and flow rate of each rotary kiln being different, there are differences in the material dropping points. The materials in the BC section area of the first air chamber near the edge of the grate cooler (i.e., Figure 1 in the BC section area) are greatly affected by the air output of the grate cooler. When the air output is large, it is easy to cause the materials in this area to overflow and be lost; and when there is no material passing through this area, the cooling air also flows out from this area, resulting in waste, affecting the working efficiency and cooling effect of the fan. Moreover, the area of contact between this area and the materials is only one-tenth of that of a conventional air chamber. If this area is independently set as an air chamber, it will increase the design cost, and when the materials do not flow through this area, it will cause this air chamber to be idle, further increasing unnecessary costs. Generally speaking, there are problems of material overflow and idle cooling air in the BC section area of the first air chamber of the grate cooler.

[0043] In view of this, as Figures 1 to 3 shown, this solution provides a flow regulating valve for the air duct of a grate cooler, including a regulating assembly 100;

[0044] The adjusting assembly 100 is communicated with the main air duct 300 of the first air chamber 600 through the valve port adapter 200;

[0045] Taking the air outlet direction of the main air duct 300 as the X direction, the air outlet direction of the valve port adapter 200 as the Y direction, and the blanking direction of the rotary kiln 400 as the Z direction;

[0046] Both the X direction and the Y direction are parallel to the horizontal plane;

[0047] The adjusting assembly 100 includes a rocker arm 110, a pull rod 120 and a flap 130;

[0048] The flap 130 is rotatably connected to the inner wall of the valve port adapter 200 through a rotating shaft 140;

[0049] One end of the rocker arm 110 is fixedly connected to the rotating shaft 140, and the other end is fixedly connected to the pull rod 120.

[0050] Specifically, during the process of the material blanking in the Z direction, the air in the X direction and the Y direction blows towards the material in a manner perpendicular to the Z direction. The operator can adjust the air volume of the valve port adapter 200 by changing the angle of the flap 130 according to the actual blanking state of the BC section, so that an appropriate cooling air blows towards the blanking of the BC section, improving the utilization efficiency of the cooling air and avoiding the problem of material overflow caused by excessive cooling air volume.

[0051] Such as Figure 2 and Figure 3 As shown, the adjusting assembly 100 includes a first action and a second action;

[0052] In the first action, the pull rod 120 moves in the X direction, and the rocker arm 110 drives the rotating shaft 140 to rotate, causing the air outlet of the valve port adapter 200 to gradually expand;

[0053] In the second action, the pull rod 120 moves in the opposite direction of the X direction, and the rocker arm 110 drives the rotating shaft 140 to rotate in the reverse direction, causing the air outlet of the valve port adapter 200 to gradually decrease.

[0054] Preferably, a slot parallel to the Y direction is provided on the side wall of the rocker arm 110, and the pull rod 120 is inserted into the slot through a rotating shaft structure, so that the pull rod 120 can control the rocker arm 110 to drive the rotating shaft 140 to rotate by means of linear motion, or it can also be a gear connection method. For example, one end of the pull rod 120 close to the rocker arm 110 is connected to the second gear on the rocker arm 110 through the first gear, and the second gear is set as a semi-circular gear with the rotating shaft 140 as the center. When the pull rod 120 moves linearly, the second gear is controlled by the first gear to move around the rotating shaft 140 to control the rotation of the rotating shaft 140. Of course, it can also be other forms of connection structures.

[0055] As shown Figure 3 in the figure, a limit block 210 is arranged inside the valve port adapter 200;

[0056] The limit block 210 can now limit the flap 130 to rotate within a range of 90° from parallel to the X direction to perpendicular to the X direction.

[0057] Specifically, the limit blocks 210 are fixedly connected to the inner walls on both sides of the valve port adapter 200 by means of threaded connections. One limit block 210 is arranged at the center position of the valve port adapter 200 to limit the farthest travel of the pull rod 120 in the X direction, and the other limit block 120 is arranged at the edge position of the valve port adapter 200 to limit the farthest travel of the pull rod 120 in the opposite direction of the X direction.

[0058] This solution also includes a locking assembly 500;

[0059] The locking assembly 500 includes a sleeve 510 and an adjusting bolt 520;

[0060] The pull rod 120 is inserted into the sleeve 510;

[0061] The adjusting bolt 520 is inserted into the side wall of the sleeve 510 and extends inward to abut against the pull rod 120.

[0062] Specifically, after the air output of the valve port adapter 200 is adjusted, the adjusting bolt 520 is tightened so that the adjusting bolt tightly abuts against the pull rod 120, avoiding the cooling air from affecting the angle of the flap 130 and thus affecting the size of the air volume.

[0063] Preferably, a sealing ring is arranged on the side wall of the flap 130. When there is no material passing through the BC section, the flap 130 will completely block the air outlet of the valve port adapter 200. Using the sealing ring can effectively avoid the problem of waste of cooling air caused by the cooling air flowing out from the valve port adapter 200; in addition, a pull ring 150 is arranged at one end of the pull rod 120 away from the rocker arm 110, and a rubber layer is arranged on the surface of the pull ring 150 for convenient manual lifting.

[0064] This solution has at least the following beneficial effects:

[0065] This solution provides a grate cooler air duct flow regulating valve, which controls the air output of the valve port adapter 200 by adjusting the angle of the flap 130, so that the cooling air effectively blows to the material falling area of the BC section, improving the cooling effect and avoiding material overflow and waste of cooling air. In addition, the limit block 210 and the locking assembly 500 ensure the stability of the adjusted air output, and the sealing ring prevents waste of cooling air.

[0066] In summary, this solution realizes the precise regulation of the cooling air and improves the overall working efficiency of the grate cooler.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flow regulating valve for the air duct of a grate cooler, characterized in that: It includes a regulating component (100); The regulating component (100) is communicated with the main air duct (300) of the first air chamber (600) through a valve port transition section (200); Taking the air outlet direction of the main air duct (300) as the X direction, the air outlet direction of the valve port transition section (200) as the Y direction, and the blanking direction of the rotary kiln (400) as the Z direction; Both the X direction and the Y direction are parallel to the horizontal plane; The regulating component (100) includes a rocker arm (110), a pull rod (120) and a flap (130); The flap (130) is rotationally connected to the inner wall of the valve port transition section (200) through a rotating shaft (140); One end of the rocker arm (110) is fixedly connected to the rotating shaft (140), and the other end is fixedly connected to the pull rod (120).

2. The flow regulating valve for the air duct of a grate cooler according to claim 1, characterized in that: The regulating component (100) includes a first action and a second action; In the first action, the pull rod (120) moves in the X direction, and the rocker arm (110) drives the rotating shaft (140) to rotate, so that the air outlet of the valve port transition section (200) gradually expands; In the second action, the pull rod (120) moves in the opposite direction of the X direction, and the rocker arm (110) drives the rotating shaft (140) to rotate in the reverse direction, so that the air outlet of the valve port transition section (200) gradually decreases.

3. The flow regulating valve for the air duct of a grate cooler according to claim 2, characterized in that: A limit block (210) is arranged in the valve port transition section (200); The limit block (210) can now make the flap (130) rotate within a range of 90° from parallel to the X direction to perpendicular to the X direction.

4. The flow regulating valve for the air duct of a grate cooler according to claim 3, characterized in that: It further includes a locking component (500); The locking component (500) includes a sleeve (510) and an adjusting bolt (520); The pull rod (120) is inserted into the sleeve (510); The adjusting bolt (520) is inserted into the side wall of the sleeve (510) and extends inward to abut against the pull rod (120).

5. The flow regulating valve for the air duct of a grate cooler according to claim 4, characterized in that: A sealing ring is arranged on the side wall of the flap (130).

6. The flow regulating valve for the air duct of a grate cooler according to claim 5, characterized in that: A pull ring (150) is arranged at one end of the pull rod (120) away from the rocker arm (110).

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